Opinions from D. B. Weishampel and J. B. Weishampel 1983
- 'Abrictosaurus belongs to Heterodontosauridae'
- 'Alocodon belongs to Hypsilophodontidae'
- 'Alocodon kuehnei belongs to Alocodon'
- 'Anatosaurus belongs to Hadrosaurinae'
- 'Anatosaurus copei belongs to Anatosaurus'
- 'Anoplosaurus belongs to Iguanodontidae'
- 'Anoplosaurus curtonotus belongs to Anoplosaurus'
- 'Aralosaurus belongs to Hadrosaurinae'
- 'Aralosaurus tuberiferus belongs to Aralosaurus'
- 'Bactrosaurus belongs to Lambeosaurinae'
- 'Bactrosaurus johnsoni belongs to Bactrosaurus'
- 'Brachylophosaurus belongs to Hadrosaurinae'
- 'Brachylophosaurus canadensis belongs to Brachylophosaurus'
- 'Callovosaurus belongs to Iguanodontidae'
- 'Camptonotus dispar is recombined as Camptosaurus dispar'
- 'Camptosaurus belongs to Iguanodontidae'
- 'Camptosaurus depressus belongs to Camptosaurus'
- 'Camptosaurus leedsi is recombined as Callovosaurus leedsi'
- 'Claosaurus belongs to Hadrosaurinae'
- 'Corythosaurus belongs to Lambeosaurinae'
- 'Corythosaurus casuarius belongs to Corythosaurus'
- 'Craspedodon belongs to Iguanodontidae'
- 'Craspedodon lonzeensis belongs to Craspedodon'
- 'Dryosaurus belongs to Hypsilophodontidae'
- 'Dryosaurus canaliculatus is recombined as Valdosaurus canaliculatus'
- 'Dysalotosaurus lettowvorbecki is recombined as Dryosaurus lettowvorbecki'
- 'Echinodon belongs to Fabrosauridae'
- 'Echinodon becklesii belongs to Echinodon'
- 'Edmontosaurus belongs to Hadrosaurinae'
- 'Edmontosaurus regalis belongs to Edmontosaurus'
- 'Fabrosauridae belongs to Ornithopoda'
- 'Fabrosaurus belongs to Fabrosauridae'
- 'Fabrosaurus australis belongs to Fabrosaurus'
- 'Geranosaurus belongs to Heterodontosauridae'
- 'Geranosaurus atavus belongs to Geranosaurus'
- 'Gilmoreosaurus belongs to Hadrosaurinae'
- 'Gryposaurus notabilis is recombined as Hadrosaurus notabilis'
- 'Hadrosauridae belongs to Ornithopoda'
- 'Hadrosaurinae belongs to Hadrosauridae'
- 'Hadrosaurus belongs to Hadrosaurinae'
- 'Hadrosaurus agilis is recombined as Claosaurus agilis'
- 'Hadrosaurus foulkii belongs to Hadrosaurus'
- 'Heterodontosauridae belongs to Ornithopoda'
- 'Heterodontosaurus belongs to Heterodontosauridae'
- 'Heterodontosaurus tucki belongs to Heterodontosaurus'
- 'Hypacrosaurus belongs to Lambeosaurinae'
- 'Hypacrosaurus altispinus belongs to Hypacrosaurus'
- 'Hypsilophodon belongs to Hypsilophodontidae'
- 'Hypsilophodon foxii belongs to Hypsilophodon'
- 'Hypsilophodon wielandi belongs to Hypsilophodon'
- 'Hypsilophodontidae belongs to Ornithopoda'
- 'Iguanodon belongs to Iguanodontidae'
- 'Iguanodon bernissartensis belongs to Iguanodon'
- 'Iguanodon hillii is recombined as Craspedodon hilli'
- 'Iguanodon hoggii [misspelled as Iguanodon hoggi] belongs to Iguanodon'
- 'Iguanodon mantelli belongs to Iguanodon'
- 'Iguanodon orientalis belongs to Iguanodon'
- 'Iguanodon ottingeri belongs to Iguanodon'
- 'Iguanodon prestwichii is recombined as Camptosaurus prestwichii'
- 'Iguanodon suessii is recombined as Mochlodon suessi'
- 'Iguanodontidae belongs to Ornithopoda'
- 'Jaxartosaurus belongs to Lambeosaurinae'
- 'Jaxartosaurus aralensis belongs to Jaxartosaurus'
- 'Kangnasaurus belongs to Hypsilophodontidae'
- 'Kangnasaurus coetzeei belongs to Kangnasaurus'
- 'Kritosaurus navajovius is recombined as Hadrosaurus navajovius'
- 'Lambeosaurinae belongs to Hadrosauridae'
- 'Lambeosaurus belongs to Lambeosaurinae'
- 'Lambeosaurus lambei belongs to Lambeosaurus'
- 'Lambeosaurus laticaudus belongs to Lambeosaurus'
- 'Lambeosaurus magnicristatum is corrected as Lambeosaurus magnicristatus and belongs to Lambeosaurus'
- 'Lanasaurus belongs to Heterodontosauridae'
- 'Lanasaurus scalpridens belongs to Lanasaurus'
- 'Laosaurus altus is recombined as Dryosaurus altus'
- 'Lesothosaurus belongs to Fabrosauridae'
- 'Lesothosaurus diagnosticus belongs to Lesothosaurus'
- 'Limnosaurus transsylvanicus is recombined as Telmatosaurus transsylvanicus'
- 'Lophorhothon belongs to Hadrosaurinae'
- 'Lophorhothon atopus belongs to Lophorhothon'
- 'Lycorhinus belongs to Heterodontosauridae'
- 'Lycorhinus angustidens belongs to Lycorhinus'
- 'Lycorhinus consors is recombined as Abrictosaurus consors'
- 'Maiasaura belongs to Hadrosaurinae'
- 'Maiasaura peeblesorum belongs to Maiasaura'
- 'Mandschurosaurus belongs to Hadrosaurinae'
- 'Mandschurosaurus mongoliensis is recombined as Gilmoreosaurus mongoliensis'
- 'Mochlodon belongs to Iguanodontidae'
- 'Muttaburrasaurus belongs to Iguanodontidae'
- 'Muttaburrasaurus langdoni belongs to Muttaburrasaurus'
- 'Nanosaurus belongs to Hypsilophodontidae'
- 'Nanosaurus agilis belongs to Nanosaurus'
- 'Nanosaurus rex is recombined as Othnielia rex'
- 'Nipponosaurus belongs to Lambeosaurinae'
- 'Nipponosaurus sachalinensis belongs to Nipponosaurus'
- 'Ornithopoda belongs to Ornithischia'
- 'Orthomerus belongs to Hadrosaurinae'
- 'Orthomerus dolloi belongs to Orthomerus'
- 'Othnielia belongs to Hypsilophodontidae'
- 'Ouranosaurus belongs to Iguanodontidae'
- 'Ouranosaurus nigeriensis belongs to Ouranosaurus'
- 'Parasaurolophus belongs to Lambeosaurinae'
- 'Parasaurolophus cyrtocristatus belongs to Parasaurolophus'
- 'Parasaurolophus tubicen belongs to Parasaurolophus'
- 'Parasaurolophus walkeri belongs to Parasaurolophus'
- 'Parksosaurus belongs to Hypsilophodontidae'
- 'Phyllodon belongs to Hypsilophodontidae'
- 'Phyllodon henkeli belongs to Phyllodon'
- 'Pisanosaurus belongs to Heterodontosauridae'
- 'Pisanosaurus mertii belongs to Pisanosaurus'
- 'Probactrosaurus belongs to Iguanodontidae'
- 'Probactrosaurus alashanicus belongs to Probactrosaurus'
- 'Probactrosaurus gobiensis belongs to Probactrosaurus'
- 'Procheneosaurus convincens belongs to Procheneosaurus'
- 'Prosaurolophus belongs to Hadrosaurinae'
- 'Prosaurolophus maximus belongs to Prosaurolophus'
- 'Rhabdodon is a subjective synonym of Mochlodon'
- 'Rabdodon priscum is a subjective synonym of Mochlodon suessi'
- 'Rhadinosaurus belongs to Iguanodontidae'
- 'Rhadinosaurus alcimus [misspelled as Rhadinosaurus alcinus] belongs to Rhadinosaurus'
- 'Saurolophus belongs to Hadrosaurinae'
- 'Saurolophus angustirostris belongs to Saurolophus'
- 'Saurolophus osborni belongs to Saurolophus'
- 'Scutellosaurus belongs to Fabrosauridae'
- 'Scutellosaurus lawleri belongs to Scutellosaurus'
- 'Secernosaurus belongs to Hadrosaurinae'
- 'Secernosaurus koerneri belongs to Secernosaurus'
- 'Shantungosaurus belongs to Hadrosaurinae'
- 'Shantungosaurus giganteus belongs to Shantungosaurus'
- 'Tanius belongs to Hadrosaurinae'
- 'Tanius chingkankouensis belongs to Tanius'
- 'Tanius sinensis belongs to Tanius'
- 'Tatisaurus belongs to Ornithischia'
- 'Tatisaurus oehleri belongs to Tatisaurus'
- 'Telmatosaurus belongs to Hadrosaurinae'
- 'Tenontosaurus belongs to Hypsilophodontidae'
- 'Thescelosaurus belongs to Hypsilophodontidae'
- 'Thescelosaurus neglectus belongs to Thescelosaurus'
- 'Thescelosaurus warreni is recombined as Parksosaurus warreni'
- 'Trachodon amurense is recombined as Mandschurosaurus amurensis'
- 'Trachodon cantabrigiensis is recombined as Telmatosaurus cantabrigiensis'
- 'Trimucrodon belongs to Fabrosauridae'
- 'Trimucrodon cuneatus belongs to Trimucrodon'
- 'Tsintaosaurus belongs to Hadrosaurinae'
- 'Tsintaosaurus spinorhinus belongs to Tsintaosaurus'
- 'Valdosaurus belongs to Hypsilophodontidae'
- 'Valdosaurus nigeriensis belongs to Valdosaurus'
- 'Vectisaurus belongs to Iguanodontidae'
- 'Vectisaurus valdensis belongs to Vectisaurus'
- 'Zephyrosaurus belongs to Hypsilophodontidae'
- 'Zephyrosaurus schaffi belongs to Zephyrosaurus'